Grading catalytic combustion device capable of coupling strong and weak heat release

Abstract

The invention discloses a grading catalytic combustion device capable of coupling strong and weak heat release, which comprises an inner barrel, an outer barrel, a conical sleeve and a circular air inlet pipe; one end of the outer barrel is sealed with the inner barrel; one end of the inner barrel extends out of the sealing end of the outer barrel; the circular air inlet pipe extends into the other end of the inner barrel; the conical sleeve is hermetically connected between the outer barrel and the circular air inlet pipe; a plurality of air inlet pipes communicated with the inside of the outer barrel are uniformly distributed on the circumference of the outer barrel; a gas inlet pipe communicated with the inside of the outer barrel is arranged between the adjacent air inlet pipes; and the inner wall of the outer barrel and the wall of the inner barrel are coated with catalytic agents. The grading catalytic combustion device centralizes the inner barrel and the outer barrel into a reaction device to carry out grading catalytic combustion to generate the coupling reaction, thereby enhancing the oxidation reaction; the air inlet pipes are tangentially and crosswise arranged to facilitate the uniform mixing of gas and air and the adherence flowing; and the retention time of gas swirl in a micro space is increased so as to enhance the combustion stability and ensure that the reaction is easier to generate, the combustion is more complete, and the combustion efficiency is further improved.

Description

technical field [0001] The invention relates to a reactor suitable for gas catalytic reforming combustion, in particular to a novel staged catalytic combustion device coupling strong and weak heat release. Background technique [0002] With the development of science and technology, the application of micro-machines has been paid more and more attention by scientists. Compared with traditional mechanical devices, micro-mechanical devices have incomparable advantages: small size, light weight, can greatly reduce the volume of the device, and complete work that people cannot complete in a small space; high energy density, relatively High working efficiency, the micro-mechanical device can better convert the chemical energy of the fuel into mechanical energy output; the production cost is low, and the pollution to the environment is small. It is precisely because of these advantages that micro-machines have broad application prospects in military, national defense construction...

AI Technical Summary

Problems solved by technology

However, due to the extremely small combustion space of the micro burner, the residence time of fuel combustion in the combustion chamber is shortened sharply, and it is prone to unstable combustion, difficult ignition, easy flameout, etc., and it is difficult to ensure complete combustion of fuel.

In addition, as the combustion space shrinks, the surface-to-volume ratio of the burner increases, and the heat loss is very serious

Existing burners generally use one of them alone, and rarely combine the two parts for application, which limits the utilization of some fuels and reduces the efficiency of fuel utilization

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